Fuel injection controller of internal combustion engine

Abstract

Abstract PURPOSE:To make adequate control of a state of engine operation by calculating a stabilized temperature and a temperature delay time constant on a fuel sticking area inside an air intake pipe based upon the running condition of an engine and also predicting the temperature on the fuel sticking area on the basis of those data so as to calculate a transient corrective amount of a fuel injection quantity. CONSTITUTION:The running condition of an engine is detected by a means (a). Then, a stabilized temperature on a fuel sticking area inside an intake pipe is calculated by a means (b) and similary the delay time constant on the fuel sticking area is calculated by a means (c). Further, the temperature on the fuel sticking area is predicted by a means (d) on the basis of the outputs from respective means (b) and (c). Furthermore, when the engine is in the state of its prescribed temperature, a transient corrective quantity of the quantity of fuel injection is calculated by a means (e) according to the output of the means (d). On the other hand, as well as the quantity of fuel injection is calculated by a means (f) on the basis of the detected result of the means (a), the quantity of fuel injection is corrected on the basis of transient corrective quantity similary by a means (f). Thereafter, fuel is injected by a means (g) in response to the output of means (f).

Inventors

• 👤 Hatsuo Nagaishi
• 👤 初雄 永石

Bibliographic Details